/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:07:26,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:07:26,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:07:26,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:07:26,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:07:26,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:07:26,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:07:26,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:07:26,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:07:26,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:07:26,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:07:26,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:07:26,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:07:26,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:07:26,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:07:26,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:07:26,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:07:26,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:07:26,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:07:26,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:07:26,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:07:26,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:07:26,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:07:26,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:07:26,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:07:26,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:07:26,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:07:26,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:07:26,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:07:26,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:07:26,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:07:26,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:07:26,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:07:26,293 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:07:26,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:07:26,293 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:07:26,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:07:26,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:07:26,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:07:26,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:07:26,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:07:26,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:07:26,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:07:26,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:07:26,297 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:07:26,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:07:26,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:07:26,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:07:26,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:07:26,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:07:26,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:07:26,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:07:26,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:07:26,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:07:26,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:07:26,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:26,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:07:26,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:07:26,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:07:26,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:07:26,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:07:26,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:07:26,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:07:26,652 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:07:26,653 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label31.c [2020-07-20 14:07:26,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ab84475e/7988cae5e8594b129a5817313b454367/FLAG6b650e50d [2020-07-20 14:07:27,379 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:07:27,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label31.c [2020-07-20 14:07:27,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ab84475e/7988cae5e8594b129a5817313b454367/FLAG6b650e50d [2020-07-20 14:07:27,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ab84475e/7988cae5e8594b129a5817313b454367 [2020-07-20 14:07:27,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:07:27,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:07:27,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:07:27,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:07:27,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:07:27,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:07:27" (1/1) ... [2020-07-20 14:07:27,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500d7c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:27, skipping insertion in model container [2020-07-20 14:07:27,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:07:27" (1/1) ... [2020-07-20 14:07:27,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:07:27,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:07:28,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:07:28,320 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:07:28,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:07:28,524 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:07:28,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28 WrapperNode [2020-07-20 14:07:28,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:07:28,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:07:28,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:07:28,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:07:28,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28" (1/1) ... [2020-07-20 14:07:28,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28" (1/1) ... [2020-07-20 14:07:28,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28" (1/1) ... [2020-07-20 14:07:28,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28" (1/1) ... [2020-07-20 14:07:28,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28" (1/1) ... [2020-07-20 14:07:28,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28" (1/1) ... [2020-07-20 14:07:28,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28" (1/1) ... [2020-07-20 14:07:28,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:07:28,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:07:28,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:07:28,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:07:28,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:07:28,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:07:28,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:07:28,819 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:07:28,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:07:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:07:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:07:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:07:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:07:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:07:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:07:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:07:30,248 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:07:30,248 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:07:30,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:07:30 BoogieIcfgContainer [2020-07-20 14:07:30,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:07:30,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:07:30,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:07:30,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:07:30,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:07:27" (1/3) ... [2020-07-20 14:07:30,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eac1570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:07:30, skipping insertion in model container [2020-07-20 14:07:30,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:28" (2/3) ... [2020-07-20 14:07:30,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eac1570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:07:30, skipping insertion in model container [2020-07-20 14:07:30,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:07:30" (3/3) ... [2020-07-20 14:07:30,267 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label31.c [2020-07-20 14:07:30,280 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:07:30,289 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:07:30,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:07:30,337 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:07:30,337 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:07:30,337 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:07:30,337 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:07:30,337 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:07:30,338 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:07:30,338 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:07:30,338 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:07:30,366 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 14:07:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-20 14:07:30,382 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:30,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:30,384 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:30,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:30,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1634450302, now seen corresponding path program 1 times [2020-07-20 14:07:30,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:30,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018079960] [2020-07-20 14:07:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:30,591 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:30,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:30,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:07:30,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:30,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:30,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:30,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018079960] [2020-07-20 14:07:30,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:30,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:30,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918449329] [2020-07-20 14:07:30,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:30,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:30,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:30,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:30,766 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 14:07:31,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:31,861 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 14:07:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:31,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-07-20 14:07:31,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:31,897 INFO L225 Difference]: With dead ends: 615 [2020-07-20 14:07:31,898 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 14:07:31,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 14:07:32,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 14:07:32,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 14:07:32,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 14:07:32,053 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 122 [2020-07-20 14:07:32,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:32,056 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 14:07:32,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:32,056 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 14:07:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 14:07:32,068 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:32,069 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:32,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:32,274 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:32,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:32,275 INFO L82 PathProgramCache]: Analyzing trace with hash 200669667, now seen corresponding path program 1 times [2020-07-20 14:07:32,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:32,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330906692] [2020-07-20 14:07:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:32,400 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:32,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:32,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:07:32,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:32,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:32,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330906692] [2020-07-20 14:07:32,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:32,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:07:32,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282132122] [2020-07-20 14:07:32,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:07:32,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:32,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:07:32,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:32,485 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-20 14:07:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:32,982 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-20 14:07:32,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:07:32,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-07-20 14:07:32,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:32,987 INFO L225 Difference]: With dead ends: 629 [2020-07-20 14:07:32,987 INFO L226 Difference]: Without dead ends: 318 [2020-07-20 14:07:32,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:32,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-20 14:07:33,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-20 14:07:33,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-20 14:07:33,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-20 14:07:33,015 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 137 [2020-07-20 14:07:33,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:33,015 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-20 14:07:33,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:07:33,016 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-20 14:07:33,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-20 14:07:33,018 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:33,019 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:33,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:33,234 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:33,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:33,235 INFO L82 PathProgramCache]: Analyzing trace with hash 683210902, now seen corresponding path program 1 times [2020-07-20 14:07:33,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:33,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568159998] [2020-07-20 14:07:33,237 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:33,379 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:33,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:33,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:07:33,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:33,512 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:33,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:33,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568159998] [2020-07-20 14:07:33,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:33,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:07:33,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696685825] [2020-07-20 14:07:33,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:07:33,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:33,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:07:33,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:33,530 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-20 14:07:34,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:34,442 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-20 14:07:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:07:34,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-07-20 14:07:34,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:34,447 INFO L225 Difference]: With dead ends: 923 [2020-07-20 14:07:34,448 INFO L226 Difference]: Without dead ends: 621 [2020-07-20 14:07:34,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:07:34,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-20 14:07:34,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 459. [2020-07-20 14:07:34,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-20 14:07:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 601 transitions. [2020-07-20 14:07:34,481 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 601 transitions. Word has length 144 [2020-07-20 14:07:34,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:34,481 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 601 transitions. [2020-07-20 14:07:34,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:07:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 601 transitions. [2020-07-20 14:07:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-20 14:07:34,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:34,484 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:34,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:34,698 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:34,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:34,699 INFO L82 PathProgramCache]: Analyzing trace with hash -907037817, now seen corresponding path program 1 times [2020-07-20 14:07:34,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:34,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832379229] [2020-07-20 14:07:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:34,825 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:34,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:34,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:34,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:34,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:35,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832379229] [2020-07-20 14:07:35,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:35,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:07:35,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611710218] [2020-07-20 14:07:35,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:07:35,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:35,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:07:35,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:35,068 INFO L87 Difference]: Start difference. First operand 459 states and 601 transitions. Second operand 6 states. [2020-07-20 14:07:36,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:36,056 INFO L93 Difference]: Finished difference Result 1075 states and 1439 transitions. [2020-07-20 14:07:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:07:36,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2020-07-20 14:07:36,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:36,064 INFO L225 Difference]: With dead ends: 1075 [2020-07-20 14:07:36,065 INFO L226 Difference]: Without dead ends: 622 [2020-07-20 14:07:36,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:07:36,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-07-20 14:07:36,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 612. [2020-07-20 14:07:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-07-20 14:07:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 802 transitions. [2020-07-20 14:07:36,094 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 802 transitions. Word has length 153 [2020-07-20 14:07:36,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:36,095 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 802 transitions. [2020-07-20 14:07:36,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:07:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 802 transitions. [2020-07-20 14:07:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 14:07:36,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:36,098 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:36,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:36,306 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:36,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:36,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1328519679, now seen corresponding path program 1 times [2020-07-20 14:07:36,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:36,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76622391] [2020-07-20 14:07:36,309 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:36,416 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:36,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:36,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:36,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:07:36,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:36,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76622391] [2020-07-20 14:07:36,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:36,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:36,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503129037] [2020-07-20 14:07:36,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:36,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:36,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:36,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:36,475 INFO L87 Difference]: Start difference. First operand 612 states and 802 transitions. Second operand 3 states. [2020-07-20 14:07:37,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:37,125 INFO L93 Difference]: Finished difference Result 1510 states and 2025 transitions. [2020-07-20 14:07:37,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:37,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-07-20 14:07:37,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:37,133 INFO L225 Difference]: With dead ends: 1510 [2020-07-20 14:07:37,133 INFO L226 Difference]: Without dead ends: 904 [2020-07-20 14:07:37,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:37,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-07-20 14:07:37,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 758. [2020-07-20 14:07:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 758 states. [2020-07-20 14:07:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 937 transitions. [2020-07-20 14:07:37,166 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 937 transitions. Word has length 157 [2020-07-20 14:07:37,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:37,167 INFO L479 AbstractCegarLoop]: Abstraction has 758 states and 937 transitions. [2020-07-20 14:07:37,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:37,167 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 937 transitions. [2020-07-20 14:07:37,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-20 14:07:37,171 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:37,171 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:37,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:37,386 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:37,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:37,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1478871969, now seen corresponding path program 1 times [2020-07-20 14:07:37,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:37,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83043871] [2020-07-20 14:07:37,388 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:37,527 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:37,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:37,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:37,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:37,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:37,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83043871] [2020-07-20 14:07:37,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:37,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:07:37,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033131031] [2020-07-20 14:07:37,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:07:37,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:37,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:07:37,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:07:37,700 INFO L87 Difference]: Start difference. First operand 758 states and 937 transitions. Second operand 7 states. [2020-07-20 14:07:38,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:38,818 INFO L93 Difference]: Finished difference Result 1682 states and 2124 transitions. [2020-07-20 14:07:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:07:38,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2020-07-20 14:07:38,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:38,828 INFO L225 Difference]: With dead ends: 1682 [2020-07-20 14:07:38,828 INFO L226 Difference]: Without dead ends: 930 [2020-07-20 14:07:38,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 340 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:07:38,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-07-20 14:07:38,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 918. [2020-07-20 14:07:38,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2020-07-20 14:07:38,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1133 transitions. [2020-07-20 14:07:38,888 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1133 transitions. Word has length 173 [2020-07-20 14:07:38,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:38,889 INFO L479 AbstractCegarLoop]: Abstraction has 918 states and 1133 transitions. [2020-07-20 14:07:38,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:07:38,889 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1133 transitions. [2020-07-20 14:07:38,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-20 14:07:38,898 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:38,898 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:39,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:39,114 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:39,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:39,114 INFO L82 PathProgramCache]: Analyzing trace with hash -110498628, now seen corresponding path program 1 times [2020-07-20 14:07:39,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:39,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540958647] [2020-07-20 14:07:39,115 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:39,249 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:39,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:39,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:39,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:39,307 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-20 14:07:39,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:39,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540958647] [2020-07-20 14:07:39,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:39,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:39,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144899745] [2020-07-20 14:07:39,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:39,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:39,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:39,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:39,310 INFO L87 Difference]: Start difference. First operand 918 states and 1133 transitions. Second operand 3 states. [2020-07-20 14:07:39,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:39,862 INFO L93 Difference]: Finished difference Result 1829 states and 2269 transitions. [2020-07-20 14:07:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:39,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-07-20 14:07:39,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:39,864 INFO L225 Difference]: With dead ends: 1829 [2020-07-20 14:07:39,864 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:07:39,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:39,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:07:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:07:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:07:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:07:39,870 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2020-07-20 14:07:39,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:39,870 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:07:39,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:39,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:07:39,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:07:40,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:40,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:07:40,710 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-07-20 14:07:40,887 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:07:40,888 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|)) [2020-07-20 14:07:40,888 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:07:40,888 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,888 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,889 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,889 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,889 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,889 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 14:07:40,889 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 14:07:40,890 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 14:07:40,890 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 14:07:40,890 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 14:07:40,890 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 14:07:40,890 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 14:07:40,891 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 14:07:40,891 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 14:07:40,891 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 14:07:40,891 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:07:40,891 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:07:40,891 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 14:07:40,891 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,891 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,892 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,892 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,892 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 14:07:40,892 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,892 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 14:07:40,892 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 14:07:40,892 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 14:07:40,892 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 14:07:40,893 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 14:07:40,893 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 14:07:40,893 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 14:07:40,893 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:07:40,893 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:07:40,893 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 14:07:40,893 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 14:07:40,894 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 14:07:40,894 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:07:40,894 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:07:40,894 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 14:07:40,894 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,894 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,894 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,895 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,895 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,895 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 520) no Hoare annotation was computed. [2020-07-20 14:07:40,895 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:07:40,895 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 14:07:40,895 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:07:40,895 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 14:07:40,896 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 14:07:40,896 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 14:07:40,896 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 14:07:40,896 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 14:07:40,896 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 14:07:40,896 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 14:07:40,896 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 14:07:40,897 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,897 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,897 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,897 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,897 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,898 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 14:07:40,899 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 14:07:40,899 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 14:07:40,899 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 14:07:40,899 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 14:07:40,899 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 14:07:40,899 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 14:07:40,900 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 14:07:40,900 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 14:07:40,900 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 14:07:40,900 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 14:07:40,900 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 14:07:40,900 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 14:07:40,900 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,901 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,901 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,901 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,901 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,901 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 14:07:40,901 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 14:07:40,901 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 14:07:40,902 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,903 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:07:40,904 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:07:40,904 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:07:40,904 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,904 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,904 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 14:07:40,904 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 14:07:40,904 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 14:07:40,904 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 14:07:40,905 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 14:07:40,905 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 14:07:40,905 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 14:07:40,905 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 14:07:40,905 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 14:07:40,905 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 14:07:40,905 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 14:07:40,906 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,907 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 14:07:40,908 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 14:07:40,909 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,909 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,909 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,909 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (not (<= 8 |old(~a17~0)|))) (.cse2 (<= ~a17~0 8)) (.cse4 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (<= ~a28~0 |old(~a28~0)|)) (.cse3 (not (<= |old(~a28~0)| 10))) (.cse7 (not (<= 10 |old(~a28~0)|))) (.cse6 (<= 10 ~a28~0)) (.cse1 (not (<= |old(~a17~0)| 8)))) (and (or (<= 8 ~a17~0) .cse0 .cse1) (or (and .cse2 (<= ~a28~0 8)) (not (<= |old(~a28~0)| 8)) .cse0 .cse1) (or .cse3 (not (<= 9 |old(~a28~0)|)) (and .cse4 .cse5 (<= 9 ~a28~0)) .cse1) (or .cse0 (and .cse5 .cse2 .cse6) .cse7 .cse1) (or (not (<= |old(~a28~0)| 7)) (and .cse4 .cse5) .cse1) (or .cse3 .cse7 .cse6 .cse1))) [2020-07-20 14:07:40,909 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,909 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,909 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,910 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 14:07:40,910 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 14:07:40,910 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 14:07:40,910 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 14:07:40,910 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 14:07:40,910 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 14:07:40,910 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 14:07:40,910 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 14:07:40,911 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:07:40,912 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:07:40,913 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 14:07:40,913 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 14:07:40,913 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 14:07:40,913 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,913 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,913 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,913 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,913 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:40,914 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 14:07:40,914 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 14:07:40,914 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 14:07:40,914 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 14:07:40,914 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 14:07:40,914 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 14:07:40,914 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 14:07:40,914 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 14:07:40,914 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 14:07:40,915 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 14:07:40,916 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:07:40,916 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-20 14:07:40,916 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:07:40,916 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:07:40,916 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8))) [2020-07-20 14:07:40,916 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (and .cse0 (<= ~a28~0 7)) (and .cse0 (<= ~a28~0 10) (<= 9 ~a28~0)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and .cse0 (<= 8 ~a17~0)))) [2020-07-20 14:07:40,916 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:07:40,916 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:07:40,916 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (and .cse0 (<= ~a28~0 7)) (and .cse0 (<= ~a28~0 10) (<= 9 ~a28~0)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and .cse0 (<= 8 ~a17~0)))) [2020-07-20 14:07:40,916 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 14:07:40,917 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 14:07:40,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:07:40 BoogieIcfgContainer [2020-07-20 14:07:40,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:07:40,940 INFO L168 Benchmark]: Toolchain (without parser) took 13322.73 ms. Allocated memory was 142.1 MB in the beginning and 374.9 MB in the end (delta: 232.8 MB). Free memory was 100.5 MB in the beginning and 307.3 MB in the end (delta: -206.8 MB). Peak memory consumption was 249.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:40,941 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 142.1 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 14:07:40,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 907.17 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 100.1 MB in the beginning and 169.4 MB in the end (delta: -69.3 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:40,942 INFO L168 Benchmark]: Boogie Preprocessor took 192.47 ms. Allocated memory is still 202.9 MB. Free memory was 169.4 MB in the beginning and 164.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:40,943 INFO L168 Benchmark]: RCFGBuilder took 1535.34 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 164.5 MB in the beginning and 180.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:40,944 INFO L168 Benchmark]: TraceAbstraction took 10680.04 ms. Allocated memory was 234.4 MB in the beginning and 374.9 MB in the end (delta: 140.5 MB). Free memory was 180.1 MB in the beginning and 307.3 MB in the end (delta: -127.1 MB). Peak memory consumption was 236.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:40,948 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 142.1 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 907.17 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 100.1 MB in the beginning and 169.4 MB in the end (delta: -69.3 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.47 ms. Allocated memory is still 202.9 MB. Free memory was 169.4 MB in the beginning and 164.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1535.34 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 164.5 MB in the beginning and 180.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10680.04 ms. Allocated memory was 234.4 MB in the beginning and 374.9 MB in the end (delta: 140.5 MB). Free memory was 180.1 MB in the beginning and 307.3 MB in the end (delta: -127.1 MB). Peak memory consumption was 236.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 520]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((!(\old(a28) <= 7) || (a17 <= 8 && a28 <= 7)) || ((a17 <= 8 && a28 <= 10) && 9 <= a28)) || !(8 <= \old(a17))) || !(\old(a17) <= 8)) || (a17 <= 8 && 8 <= a17) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.7s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 642 SDtfs, 2405 SDslu, 262 SDs, 0 SdLazy, 3427 SolverSat, 706 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1397 GetRequests, 1367 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=918occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 340 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 35 PreInvPairs, 47 NumberOfFragments, 226 HoareAnnotationTreeSize, 35 FomulaSimplifications, 855 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 317 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1067 NumberOfCodeBlocks, 1067 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1384 ConstructedInterpolants, 0 QuantifiedInterpolants, 400750 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2695 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 340/348 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...